28426646 has 8 divisors (see below), whose sum is σ = 42702240. Its totient is φ = 14192568.

The previous prime is 28426637. The next prime is 28426663. The reversal of 28426646 is 64662482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8606 + ... + 11441.

It is an arithmetic number, because the mean of its divisors is an integer number (5337780).

Almost surely, 2^28426646 is an apocalyptic number.

28426646 is a deficient number, since it is larger than the sum of its proper divisors (14275594).

28426646 is a wasteful number, since it uses less digits than its factorization.

28426646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20758.

The product of its digits is 110592, while the sum is 38.

The square root of 28426646 is about 5331.6644680625. The cubic root of 28426646 is about 305.1934488979.

The spelling of 28426646 in words is "twenty-eight million, four hundred twenty-six thousand, six hundred forty-six".